Stagwell Inc — Director's Dealing 2010

Mar 8, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MDC PARTNERS INC (MDCA)
CIK: 0000876883
Period of Report: 2010-03-04

Reporting Person: PUSTIL STEPHEN (Director, Vice Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-04	Class A Shares	F	4875	$10.12	Disposed	149258	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Shares	154133	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Options	$56.43	2010-03-22	Class A Shares (1905)	1905	Direct
Stock Options	$9.19	2012-04-29	Class A Shares (1905)	1905	Direct
Stock Appreciation Rights	$3.72	2014-02-12	Class A Shares (129310)	129310	Direct

Footnotes

F1: Includes unvested Restricted Stock Units (Class A Shares) of the Issuer.

F2: A total of 9,591 Restricted Stock Units (Class A Shares) of the Issuer granted February 26, 2008 vested on March 4, 2010.
The Reporting Person elected to have a total of 4,875 Class A Shares withheld to satisfy tax withholding requirements.

F3: Canadian dollars.

F4: Stock Appreciation Rights ("SARs") granted February 12, 2009, vest 33% on the first anniversary of the grant date, 33% on the
second anniversary of the grant date, and 34% on the third anniversary of the grant date, and expire on February 12, 2014.
These SARs may be settled in cash or stock, at the discretion of the Issuer.